Cordless screwdriver



FIG. 1 is a top perspective view of a cordless screwdriver, showing my new design;

FIG. 2 is a top plan view thereof, the bottom and adjacent sides being identical in appearance;

FIG. 3 is a front end elevational view thereof; and,

FIG. 4 is a rear end elevational view thereof. 

The ornamental design for a cordless screwdriver, as shown and described. 